Yes, as you noticed, this is a "presentation held among peers that all mostly know the answers to the above", from the URL alone you can see that it was a prese

Yes, as you noticed, this is a "presentation held among peers that all mostly know the answers to the above", from the URL alone you can see that it was a presentation from IETF's 109th meeting (https://www.ietf.org/how/meetings/109/ https://www.ietf.org/how/meetings/109/). The link came from the proceedings (https://datatracker.ietf.org/meeting/109/proceedings https://datatracker.ietf.org/meeting/109/proceedings), and if you search for this presentation there, you'll see that there's also a video of it. If you want some context answering your first three questions, the subject is TCP congestion control, and there's a Wikipedia article about it (https://en.wikipedia.org/wiki/TCP_congestion_control https://en.wikipedia.org/wiki/TCP_congestion_control). I don't know the answers to your last three questions, since I haven't been following the field; this presentation was mostly targetted to those who are following the field.